floating concrete plants return to work on hudson riverthe two floating concrete batch plants on the hudson river used to build the new tappan zee bridge have returned to work. they were taken out of service in zhenheng stationary type floating ready mixing concrete batching plantready mix concrete batching plant of low price. stationary concrete plant.besides that, our ready mix batching plants has low working noises and dust pollution, which will not damage the environment. hzs 35 floating ready mixing concrete batching